I was reading through "faq" and hints on one of the websites and I'll be danged if I can't find it now to give credit where credit is due.
But the gist of it was to get a max butane refill on your lighter, put it in the refrigerator for at least 15 minutes prior to filling it. Fill it, and let warm up before using it. OK.
So I tried it this morning. Normally, without all the purging nonsense I get about a 1/4 inch "air" gap in the reservoir. After tossing it the fridge for awhile, no muss, no fuss, it just FILLED with only a 1/16-1/8th in gap. Holy crap. Huge difference from it's normal. Not even going to try and purge that. It's almost maxed out.
It's my new ritual. It works.